From owner-freebsd-isp Fri Sep 27 14: 2:40 2002 Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5406037B401 for ; Fri, 27 Sep 2002 14:02:38 -0700 (PDT) Received: from inetworx.pcgameauthority.com (dsl081-233-167.lax1.dsl.speakeasy.net [64.81.233.167]) by mx1.FreeBSD.org (Postfix) with ESMTP id 95E9243E4A for ; Fri, 27 Sep 2002 14:02:37 -0700 (PDT) (envelope-from ahall@pcgameauthority.com) Received: from inetworx.pcgameauthority.com (localhost.pcgameauthority.com [127.0.0.1]) by inetworx.pcgameauthority.com (Postfix) with ESMTP id 19D8056328; Fri, 27 Sep 2002 14:02:46 -0700 (PDT) Received: (from nobody@localhost) by inetworx.pcgameauthority.com (8.12.3/8.12.3/Submit) id g8RL2eaN003308; Fri, 27 Sep 2002 14:02:40 -0700 (PDT) Date: Fri, 27 Sep 2002 14:02:40 -0700 (PDT) Message-Id: <200209272102.g8RL2eaN003308@inetworx.pcgameauthority.com> X-Authentication-Warning: inetworx.pcgameauthority.com: nobody set sender to ahall@pcgameauthority.com using -f From: "Andre Hall" To: "Dave [Hawk-Systems]" , "FreeBSD" , Subject: RE: open smtp relays and http proxies X-Mailer: NeoMail 1.25 X-IPAddress: 10.10.10.1 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I discovered this utility may return a false result if you happen to be using Postfix. By default the author disables open relay yet when I ran the utility it returned am email saying my server was. I read over the FAQ file and Postfix documentation which confirmed that my installation was not configured to open relay. Can anyone else elaborate? There were known issues with earlier versions of Postfix but I recently installed the latest stable release which wouldn't fall under this flaw. > >From a mail/SMTP perspective, just use ORBD... we run every so often on our > colo block to ensure no clients are inadvertantly(read lazy) an open relay. > > http://www.ordb.org/submit/ > > Dave > > >-----Original Message----- > >From: owner-freebsd-isp@FreeBSD.ORG > >[mailto:owner-freebsd-isp@FreeBSD.ORG]On Behalf Of FreeBSD > >Sent: Friday, September 27, 2002 2:18 PM > >To: isp@FreeBSD.ORG > >Subject: open smtp relays and http proxies > > > > > > > > > >I'm looking software that will allow us to scan > >our own netblocks for open smtp relays and open > >http and socks proxies. The spammers are very > >aggressive about abusing these systems and we > >want to check to make sure our users aren't > >running such vulnerable systems. > > > >I know rlytest in the ports collection checks > >one host for smtp relaying, but I'd like to scan > >entire netblocks at once. > > > >What else can be done to keep user's systems > >safe from spammers? > > > > > > > >To Unsubscribe: send mail to majordomo@FreeBSD.org > >with "unsubscribe freebsd-isp" in the body of the message > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message > > -- NeoMail - Webmail that doesn't suck... as much. http://neomail.sourceforge.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message